Question

Va rog,daca se poate sa ma ajutati la rezolvarea acestor exercitii.
A={x|x=5k+2;k€N}
B={y|y=n;n€N
A={x|x=6k+3;k€N}
B={y|y=4p+2;p€2}
Va multumesc

Answer 1

k=0⇒x=5k+2=5·0+2=2
k=1⇒x=5·1+2=7
k=2⇒x=12
k=3⇒x=17
k=4⇒x=22
A={2,7,12,17,22,27,32,37,42,47.......}
n=0⇒y=0
n=1⇒y=1
B={0,1,2,3,4,5,6,7,8,9,10,11,12.....}
k=0⇒x=6k+3=6·0+3=3
k=1⇒x=9
k=2⇒x=15
....
A={3,19,15,21,27,33,39,45,51,57....}
p=2⇒y=9p+2=4·2+2=10
B={10}